<?xml version="1.0" ?>
<levels>
  <level id="1">
    <![CDATA[
a 2/b 5+b   c 3/`
a   d 4+e12*c   `
d   d   e   f 2/`
g 1-g   e   f   `
    ]]>
  </level>
  <level id="2">
    <![CDATA[
a 2/a   b 3+c 7+`
d 3*d   b   c   `
e 2/f12*g 3/g   `
e   f   h 2/h   `
    ]]>
  </level>
  <level id="3">
    <![CDATA[
a 3/a   b 2*c 1-`
d 9+d   b   c   `
f 2/d   e 2/e   `
f   g12*g   g   `
    ]]>
  </level>
  <level id="4">
    <![CDATA[
a 2/a   b 3+c 7+`
d 3*d   b   c   `
e 2/f12*g 3/g   `
e   f   h 2/h   `
    ]]>
  </level>
  <level id="5">
    <![CDATA[
a 8+a   a   b11+b   `
c 9+d 2/e15*b   f 4+`
c   d   e   g 6*f   `
h 7+h   h   g   i20*`
j30*j   j   j   i   `
    ]]>
  </level>
  <level id="6">
    <![CDATA[
a12*b 1-c 3-c   d 2/`
a   b   e 3*e   d   `
f 8+f   f   g 7+g   `
h 9+h   h   i 5/i   `
j 2/j   k12+k   k   `
    ]]>
  </level>
  <level id="7">
    <![CDATA[
a20*a   b 2/b   c 9+c   `
d 3-e 5/e   f11+g 2/g   `
d   h 1-h   f   i 6+i   `
j 7+j   k 2-k   i   l 5*`
m 3-n 2/n   o 9+o   l   `
m   p 2/p   q13+q   q   `
    ]]>
  </level>
  <level id="8">
    <![CDATA[
a 2/a   b30*b   c60*c   `
d10+e 2-f 2/f   c   c   `
d   e   g 1-g   h 2/i 7+`
d   j 4/j   k12+h   i   `
l10*m 8+n 5-k   o 4-o   `
l   m   n   k   p 5+p   `
    ]]>
  </level>
  <level id="9">
    <![CDATA[
a15*a   a   b21*c11+d 4-e 9+`
f11+g 6-g   b   c   d   e   `
f   f   h 6*i 1-c   j12+j   `
k 1-k   h   i   l10*l   j   `
m48*m   m   n14+o 8+p10+p   `
q20*q   n   n   o   r12*r   `
s 5/s   t 2/t   u21*u   r   `
    ]]>
  </level>
</levels>
